body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
}

#app {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

nav {
  display: flex;
  justify-content: space-around;
  margin-bottom: 20px;
  padding: 10px;
  background-color: #333;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

.page {
  padding: 20px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
